{"entry":{"slug":"libraries-io-api","name":"Libraries.io","category":"api","summary":"Metadata, dependencies and release history for open-source packages across 30+ managers.","description":"","auth_mode":"API key","endpoint":"https://libraries.io/api","docs_url":"https://libraries.io/api","tags":["open-source","open"],"capabilities":["open source metadata","package data","metadata","dependencies","release","history","source","packages"],"auth_params":[{"name":"Authorization","location":"header","required":true}],"input_format":"application/json","output_format":"application/json","rate_limit":"Provider defined","pricing":"Free or free tier","invocation_example":"","verified":false,"verified_at":null,"featured":false,"checks_total":54,"checks_ok":54,"avg_latency_ms":1711,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-06T01:17:34.362+00:00","health_latency_ms":1915,"probe_url":null},"watch":{"hint":"Follow \"libraries-io-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"libraries-io-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}